Find Pedersen O, Petersen R, Schack Staffeldt E
Scand J Rehabil Med. 1975;7(3):125-8.
105 factory workers (38 females and 67 males) have been questioned about their frequency of back pain. 60% of the females and 61% of the males have previously experienced episodes of back pain. 21% of the females and 37% of the males have been absent from work due to back pain. The incidence of back pain is not related to age, height, sort of work, or isometric muscle strength of the back (IS). For the males the incidence rises with increasing weight, i.e. combination of height and obesity, but is not related to any two single factors. For the females there is no correlation between the incidence of pain and weight. IS is correlated to height and age in the males but not in the females. Standards for IS are presented and suggested as a guide to evaluation of the working capabilities of individual subjects with back pain.
105名工厂工人（38名女性和67名男性）被询问了他们背痛的频率。60%的女性和61%的男性之前曾经历过背痛发作。21%的女性和37%的男性因背痛而缺勤。背痛的发生率与年龄、身高、工作种类或背部等长肌力（IS）无关。对于男性来说，发生率随着体重增加而上升，即身高和肥胖的综合影响，但与任何两个单一因素均无关。对于女性来说，疼痛发生率与体重之间没有相关性。男性的IS与身高和年龄相关，但女性则不然。文中给出了IS标准，并建议将其作为评估个体背痛患者工作能力的指导。
